Experimental Analysis of Double Pipe Heat exchanger with circular fins using Al2O3 /EG -Water Nano fluid
Mechanical Engineering Department, PSE, India
ABSTRACT
Experimentally study on a counter flow double pipe heat exchanger using by Water / Water and then adding 0.5 wt.% the Al2O3 nanoparticles in base cold fluid with circular fins. Nano fluid is a fluid having Nano size particles, dispersed in the conventional base fluids such as water, engine oil, ethylene glycol, which tremendously enhances the heat transfer characteristics of original fluid. Because of this fluid containing suspensions of metallic nanoparticles and have higher thermal conductivity. The heat transfer coefficient of the Al2O3 –Water nanofluid flowing in a counter flow concentric tube heat exchanger under turbulent flow conditions are investigated. The results show that the convective heat transfer coefficient of nanofluid is higher than that of the base liquid by about 13% – 16%. The heat transfer coefficient of the nanofluid increases with an increase in the mass flow rate of the hot water and nanofluid.
